# NTSB investigations, TN: Unknown or undetermined

NTSB aviation accident and incident investigations since 1962: the probable cause, findings, aircraft, crew, weather and docket of each, linked to the FAA registry and the FAA’s own reports.

## Latest cases

- [NTSB ERA25FA253](https://openairdocs.org/ntsb/ERA25FA253.md): Ercoupe 415 · Gallatin, TN · Accident · 1 fatal · Class 3 · Field · Preliminary report · Jul 2, 2025 · N93985 · Substantial damage
  > On July 2, 2025, about 1300 central daylight time, an Ercoupe 415-C, N93985, was substantially damaged when it was involved in an accident near Gallatin, Tennessee. The pilot was fatally injured. The airplane was operated as a Title 14 Code of Federal…
- [NTSB WPR25FA126](https://openairdocs.org/ntsb/WPR25FA126.md): Mooney M20F · Reliance, TN · Accident · 3 fatal · Class 3 · Field · Preliminary report · Apr 11, 2025 · N7026V · Substantial damage
  > On April 11, 2025, about 1402 eastern daylight time, a Mooney M20F, N7026V, sustained substantial damage when it was involved in an accident near Reliance, Tennessee. The pilot, pilot-rated passenger and passenger were fatally injured. The airplane was…
- [NTSB ERA24LA082](https://openairdocs.org/ntsb/ERA24LA082.md): Mooney M20K · Tullahoma, TN · Accident · No injuries · Class 3 · Limited · Final report · Jan 3, 2024 · N231GG · Substantial damage
  > A total loss of engine power for undetermined reasons.
- [NTSB ERA23LA205](https://openairdocs.org/ntsb/ERA23LA205.md): Schweizer 269C · Springfield, TN · Accident · No injuries · Class 3 · Limited · Final report · Apr 22, 2023 · N789LH · Substantial damage
  > A partial loss of engine power for undetermined reasons.
- [NTSB ERA23LA111](https://openairdocs.org/ntsb/ERA23LA111.md): Piper PA-28-160 · Somerville, TN · Accident · No injuries · Class 4 · Limited · Final report · Jan 10, 2023 · N5841W · Substantial damage
  > Based on available evidence, the reason for the damage to the airplane’s propeller and engine cowling could not be determined.
- [NTSB ERA15FA204](https://openairdocs.org/ntsb/ERA15FA204.md): Cessna 182 · Mulberry, TN · Accident · 1 fatal · Field investigation · Final report · May 3, 2015 · N6579M · Destroyed
  > The pilot's failure to recover from a controlled descent for reasons that could not be determined during the postaccident investigation.
- [NTSB NYC08FA238](https://openairdocs.org/ntsb/NYC08FA238.md): Cessna 152 · Rossville, TN · Accident · 1 fatal · Field investigation · Final report · Jul 5, 2008 · N5372B · Destroyed
  > Undetermined.

## The whole list in SQL

Runs in DuckDB 1.2 or later on the release's Parquet files over HTTPS:

```sql
SELECT c."ntsbNumber", c."eventDate", c."eventType", c."eventCity", c."eventStateOrRegion", a.n_number, a."aircraftMake", a."aircraftModel", c."highestInjuryLevel", c."totalFatal", c."completionStatus", c.report_url
FROM 'https://openairdocs.org/data/latest/ntsb_case_detail.parquet' c LEFT JOIN 'https://openairdocs.org/data/latest/ntsb_aircrafts.parquet' a ON a.case_mkey = c."mKey" AND a.position = 1
WHERE c."eventStateOrRegion" = 'TN' AND c."eventCountry" = 'USA'
  AND c."mKey" IN (SELECT s.case_mkey FROM 'https://openairdocs.org/data/latest/ntsb_events.parquet' s WHERE s."tier2Number" = '000' AND s.case_mkey IN (SELECT case_mkey FROM 'https://openairdocs.org/data/latest/ntsb_events.parquet' WHERE "isDefiningEvent"))
ORDER BY c."eventDate" DESC, c."ntsbNumber" DESC
```

This list as a web page: https://openairdocs.org/ntsb-events/000/sequence?state=TN

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